Boats and Streams - The other important topic is Boats and Streams is also an extended version of Time, Speed & Distance. The questions related to this chapter hold a good number in all the competitive examinations. The key to crack this chapter is, that one should go through the basic concepts of Time, Speed and Distance and then should relate this with Boats and Streams. The only difference of Boats and Streams with Time, Speed and Distance is of terminologies. Some of the important terminologies and concepts related to boats & streams are as follows:-
Concept Related to Condition
When a boat is going with the stream (Downstream)
The relative speed to cover the distance would be the sum of the speed of boat & speed of the stream.
When a boat is going against the stream (Upstream)
The relative speed to cover the distance would be the difference in the speed of boat & speed of the stream.
When the distance covered by boat is downstream is equal to the distance covered by boat in upstream
(Time taken by boat in downstream): (Time taken by boat in upstream) = (Upstream Speed): (downstream Speed)
First of all go through time, speed, distance and trains before coming to boats & streams.
Learn and imagine the things in upstream and downstream.
Learn some tricks related to specific kind of questions repeatedly asked by the examination bodies.
Go through some puzzles related to the concept of the topic for having a great imagination and understanding.
Take a look at questions appeared in the past related to boats and streams.
Take a mock test for having great concept clarity.
Q 1. A man can row downstream at the rate of 14 km/hr and upstream at 5 km/hr. Find man’s rate in still water.
Q 2. A man row upstream 16 km and downstream 27 km taking 5 hours each time. What is the velocity of current?
Q 3. A man can row 4.5 km/hr in still water and he finds that it takes him twice as long to row up as to row down the river. Find the rate of stream.
Q 4. The speed of a boat in still water is 15 km/hr and the rate of current is 3 km/hr. The distance traveled downstream in 12 minutes is
Q 5. The current of stream runs at 1 kmph. A motor boat goes 35 km up stream and back again to the starting point in 12 hours. The speed of the motor boat is?
Q 6. A man can row 5 kmph in still water. If the the river is running at 1 kmph, it takes him 75 minutes to row to a place and back. How far is the place?
Q 7. A man can row upstream at 7 kmph and downstream at 10 kmph. Find man’s rate water and rate of current?
4, 1.5 kmph
8.5, 1.5 kmph
3, 2.5 kmph
3.5, 2.5 kmph
2.5, 1.5 kmph
Q 8. A man can row kmph in still water and he finds that it takes him thrice as much time to row up than as to row down the same distance in river. The speed of the current is?
Q 9. A boat travels upstream from B to A and down strean from A to B in 3 hours. If the speed of boat in still is 9 kmph and the speed of the current is 3 kmph, the distance between A and B is?
Q 10. A man row upstream at 8 kmph and downstream at 13 kmph. The speed of the stream is?
Q 11. A man rows 13 km upstream in 5 hours and also 28 km downstream in 5 hours. The velocity of the stream is.
Q 12. The current of a streams runs at 1 kmph . A motor boat goes 35 km upstream and back again to the starting point in 12 hours. The speed of the motor boat in the still water is?
Q 13. A man can row a boat at 10 k mph in still water. If the speed of the stream is 6 kmph the time taken to a row distance of 80 km down the stream is?
Q 14. If a man rows at 6 k mph in still water and 4.5 km against the current, then his along the current is?
Q 15. In one hour, a boat goes 11 km along stream & 5 km against the stream. The speed of boat in still water in kmph is:
Q 16. A man rows downstream 32 km & 14 km upstream. If he takes 6 hr to cover each distance. The the velocity of current is:
Q 17. A boat running downstream covers a distance of 16km in 2 hr & upstream in 4 hr. What is the speed of boat in still water
Q 18. A boatman goes 2 km against the current in 1 hr & goes 1 km along the current in 10 min. How long will it take to go 5km in still water?
Q 19. A man takes twice as long to row a distance against the stream as to row the same distance in favour of stream. The ratio of speed of boat in still water and the steam is:
Q 20. A boat running upstream takes 8 hr 48 min to cover a certain distance, while it takes 4 hrs to cover the same distance running downstream. What is the ratio b/w speed of boat & speed of water current?
Q 21. If a boat goes 7km upstream in 42 min & speed of stream is 3kmph. Then what is the speed of boat in still water?
Q 22. A man can row at 5 km ph in still water. If the velocity of current is 1 kmph& it takes him 1 hr to row to a place & come back, how far is the place
Q 23. A boat takes 19 hr to travel downstream from A to B & coming back to C, mid-way b/w A & B. If the velocity of stream is 4 kmph& speed of boat in still water is 14 kmph. What is the distance b/w A & B?
Q 24. A man can row at 5 k mph in still water. If the velocity of current is 1 kmph& it takes him 1 hr to row to a place & come back, how far is the place
Q 25. Speed of a boat in standing water is 14 kmph and the speed of the stream is 1.2 k mph. A man rows to a place at a distance of 4864 km and comes back to the starting point. The total time taken by him is:
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